A.10tB.15tC.20tD.25t
A.當(dāng)房屋高度大于柱間距2.5倍時(shí),柱間支撐宜分層設(shè)置B.當(dāng)沿柱高有質(zhì)量集中點(diǎn)應(yīng)設(shè)置相應(yīng)支撐點(diǎn)C.當(dāng)沿柱高吊車牛腿應(yīng)設(shè)置相應(yīng)支撐點(diǎn)D.當(dāng)沿柱高有低屋面連接點(diǎn)處應(yīng)設(shè)置相應(yīng)支撐點(diǎn)
A.圓鋼或鋼索交叉支撐B.型鋼交叉支撐C.門式框架D.方管或圓管人字支撐